Phase adjusting system of phase shifter and power transmitting device thereof

Abstract

The invention discloses a phase adjusting system of a phase shifter and a power transmitting device thereof. The power transmitting device comprises an output assembly, a switching assembly, a first driving mechanism and a second driving mechanism, wherein the output assembly comprises at least two rotatable output gears, the switching assembly comprises a rotary box which is rotatably arranged inthe circumference, a driving gear and a driven gear, the driving gear and the driven gear are rotatably arranged in the rotary box, the rotary box is provided with a connecting part, the driving gearcan drive the driven gear to rotate, and the driven gear can be selectively meshed with any one of the output gears through the rotary box; the first driving mechanism is provided with a first rotarypower output end which is in fixed transmission with the connecting part of the rotary box, and the second driving mechanism is provided with a second rotary power output end which is in fixed transmission with the driving gear. By means of the phase adjusting system of a phase shifter and the power transmitting device thereof, the cost of antennas can be lowered, the weight and size of the antennas can be reduced, and miniaturization of the antennas is facilitated.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a phase adjustment system of a phase shifter and a power transmission device thereof. Background technique [0002] In current base station antennas, there are mainly two methods of downtilt adjustment: mechanical downtilt and electric downtilt. The principle of ESC downtilt is to change the phase of the collinear array antenna oscillator by changing the phase of the phase shifter, change the amplitude of the vertical component and the horizontal component, and change the field strength of the composite component, so that the vertical direction of the antenna The sex chart is tilted downward. [0003] A separate drive module is used for each electric frequency band of a multi-frequency electronically adjustable antenna; however, the higher the frequency, the more mechanical transmission parts, resulting in excessive weight and large volume of the antenna, which w...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a phase shifter phase adjustment system and its power transmission device, which can solve the problem of excessive weight and large volume of the antenna due to too many mechanical transmission parts in the traditional multi-frequency electric adjustment antenna. Conducive to the development of antenna miniaturization

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